import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;

public class BinaryFileExample {
    public static void main(String[] args) {
        try (FileInputStream inputStream = new FileInputStream("input.dat");
             FileOutputStream outputStream = new FileOutputStream("output.dat")) {
             
            int data;
            while ((data = inputStream.read()) != -1) {
                outputStream.write(data);
            }
            System.out.println("File copied successfully.");
        } catch (IOException e) {
            System.out.println("An error occurred: " + e.getMessage());
        }
    }
}